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本人菜鸟，请教各位：
如何看一个AD转换器是双极性输入的还是单极性输入的呢？
比如ADS1259这款AD芯片呢？
一般来说可以正负电源供电的是可以支持双极性输入的，比如你说到的这款可以±2.5V供电，就可以双极性输入
